CVE-2026-120645

Full vulnerability record from the local CVENow database.

Description

CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrolling_list. When rendering option groups, scrolling_list marks the selected options by interpolating each selected value, by default taken from the request parameters, unescaped into a substitution pattern. A client can make the request die with an invalid pattern, or tie up the process with one that backtracks heavily.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

9b29abf9-4ab0-4765-b253-1875cd9b441e

Published

2026-11-04 00:17:26.020000

Last modified

2026-11-04 00:17:26.020000

View original CVE JSON

{
  "id": "CVE-2026-120645",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-11-04T00:17:26.020",
  "lastModified": "2026-11-04T00:17:26.020",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "CGI versions before 5.00 for Perl allow denial of service via submitted values used as a regex for optgroup selection in scrolling_list.\n\nWhen rendering option groups, scrolling_list marks the selected options by interpolating each selected value, by default taken from the request parameters, unescaped into a substitution pattern.\n\nA client can make the request die with an invalid pattern, or tie up the process with one that backtracks heavily."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "CGI",
          "modules": [
            "CGI"
          ],
          "programFiles": [
            "lib/CGI.pm"
          ],
          "programRoutines": [
            {
              "name": "CGI::scrolling_list"
            }
          ],
          "repo": "https://github.com/leejo/CGI.pm",
          "packageURL": "pkg:cpan/CGI",
          "versions": [
            {
              "version": "0",
              "lessThan": "5.00",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-625"
        },
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/leejo/CGI.pm/commit/824956fbb0c4eb77044ba2dc9180a30df12cb309.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/LEEJO/CGI-4.72/source/lib/CGI.pm",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/LEEJO/CGI-5.00/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ]
}